LC-32LE280X/LC-40LE280X
4 – 5
No audio heard (2)
No external audio heard
Is there the L-ch audio signal input from pin (4) of input terminal
J502 to pin (124 ) of IC3301?
Is there the R-ch audio signal input from pin (6) of input terminal
J502 to pin (123 ) of IC3301?
YES
Is there the I2S signal output at pin ( 72,159,160,161 ) of IC3301 ?
Check IC3301 and its peripheral circuits.
YES
O
N
?
2
0
7
1
C
I
f
o
5,6,7,8 )
(
n
i
p
t
a
t
u
p
n
i
l
a
n
g
i
s
e
r
e
h
t
s
I
Check connection between IC3301 and IC1702 and its periph-
eral circuits.
YES
Is the L-ch audio signal output at pin(8), (13) of
IC1702 normal ?
NO
Check IC1702 and its peripheral circuits.
Is the R-ch audio signal output at pin(19), (23) of
IC1702 normal ?
YES
Are the audio signal L-ch and R-ch output at (3)/(4) and (1)/(2) of
P1701 normal?
NO
Check circuit between IC1702 & P1701.
YES
Check speakers and their peripheral circuits.
< INPUT 3 >
NO
Summary of Contents for LC-32LE280X
Page 41: ...LC 32LE280X LC 40LE280X 6 5 A C B D E F G H 2 10 9 8 7 6 5 4 3 1 POWER UNIT SYMBOL B ...
Page 42: ...LC 32LE280X LC 40LE280X 6 6 A C B D E F G H 2 10 9 8 7 6 5 4 3 1 POWER UNIT CHIP ...
Page 43: ...LC 32LE280X LC 40LE280X 6 7 A C B D E F G H 2 10 9 8 7 6 5 4 3 1 POWER UNIT PATTERN ...
Page 45: ...LC 32LE280X LC 40LE280X 6 9 A C B D E F G H 2 10 9 8 7 6 5 4 3 1 POWER UNIT SYMBOL B ...
Page 46: ...LC 32LE280X LC 40LE280X 6 10 A C B D E F G H 2 10 9 8 7 6 5 4 3 1 POWER UNIT CHIP ...
Page 47: ...LC 32LE280X LC 40LE280X 6 11 A C B D E F G H 2 10 9 8 7 6 5 4 3 1 POWER UNIT PATTERN ...
Page 66: ...LC 32LE280X LC 40LE280X 15 ...
